Electrical connector with single-piece fastening devices sandwiched between two insulators

Abstract

An electrical connector designed to be fastened on a daughterboard and to be plugged into a motherboard in a plugging direction, comprising: a plurality of contacts including a first end in the plugging direction designed to be in contact with the motherboard, and a second end opposite the first end in the plugging direction and designed to be in contact with the daughterboard, and at least one insulator. The connector comprises at least one single-piece fastening device, including: a fastening base on which the insulator is mounted, and one or the other, or both, of a fastening tip designed to be fastened on the daughterboard, and a guide tip protruding from the insulator in the plugging direction to be used as a guide during plugging of the connector into the motherboard. An assembly including the daughterboard and the connector is also disclosed.

The invention claimed is: 
     
       1. An electrical connector designed to be fastened on a daughterboard and to be plugged into a motherboard in a plugging direction, the connector comprising:
 a plurality of contacts, each contact including a first end in the plugging direction designed to be in contact with the motherboard, and a second end opposite the first end in the plugging direction and designed to be in contact with the daughterboard, and 
 at least one insulator passed through by contacts from the plurality of contacts, 
 the connector further comprising at least one single-piece fastening device, the fastening device including: 
 a fastening base on which the insulator is mounted, and 
 one or the other, or both, of a fastening tip designed to be fastened on the daughterboard, and a guide tip protruding from the insulator in the plugging direction to be used as a guide during plugging of the connector into the motherboard; 
 the connector comprising at least two single piece insulators mounted on the fastening base, each insulator being passed through by contacts from the plurality of contacts, at least one single-piece fastening device being sandwiched between the two insulators. 
 
     
     
       2. The connector according to  claim 1 , wherein:
 each fastening device includes the guide tip, and 
 the guide tip comprises a substantially cylindrical proximal part and a pointed distal part oriented substantially in the plugging direction. 
 
     
     
       3. The connector according to  claim 1 , comprising at least two fastening devices sandwiched between the two insulators, each of the insulators being mounted on each of the fastening devices. 
     
     
       4. The connector of  claim 1 , wherein the first end of each contact is a male end, each insulator including:
 a body passed through by the contacts passing through said insulator, and 
 one or more protective walls protruding from the body substantially in the plugging direction to protect first ends of the contacts, 
 the body, the protective walls and the first ends forming a plug designed to be plugged into the motherboard. 
 
     
     
       5. The connector according to  claim 4 , wherein each insulator includes a single protective wall, the protective wall extending in a transverse direction substantially perpendicular to the plugging direction over a width substantially equal to the width of the body of said insulator, the protective walls being situated across from one another and the first ends of the contacts being situated between the protective walls in a direction substantially perpendicular to the plugging direction and to the transverse direction. 
     
     
       6. The connector of  claim 1 , wherein the fastening base forms a radial bulge around an axis of each fastening device substantially parallel to the plugging direction, the bulge being received in a housing defined by each insulator, the bulge including at least one blocking face for blocking the rotation of each fastening device relative to each insulator around the axis of each fastening device. 
     
     
       7. The connector of  claim 1 , wherein the fastening base and the fastening tip respectively define two stop surfaces, each insulator having a protuberance situated between the two stop surfaces in the plugging direction, the stop surfaces cooperating with the protuberance to block the translation of each fastening device relative to each insulator in the plugging direction both ways. 
     
     
       8. The connector of  claim 1 , wherein each insulator is made from a liquid crystal polymer and each fastening device is made from stainless steel. 
     
     
       9. An assembly including a daughterboard and a connector of  claim 1 ; the connector being fastened on the daughterboard; the second end of the contacts being in contact with the daughterboard; the fastening tip of each fastening device being fastened on the daughterboard.